Abstract:
In this paper we present fabrication of hollow and solid chitosan microneedles using a recently proposed low-cost and cleanroom-free fabrication method called Cross-Over ...Show MoreMetadata
Abstract:
In this paper we present fabrication of hollow and solid chitosan microneedles using a recently proposed low-cost and cleanroom-free fabrication method called Cross-Over Lines (COL) laser engraving. COL engraving is achieved using a commercial CO2 laser-cutter to create microneedle molds on acrylic sheet. PDMS is then casted on the acrylic sheet microneedle mold to create base PDMS microneedles which are then used to generate other polymeric needles. In this paper, we cast and cure chitosan solution on the base PDMS microneedles which easily detaches from PDMS needles on drying. The resulted microneedles are hollow chitosan microneedles. We also made solid microneedles by silanizing and casting PDMSon-PDMS microneedles. We report promising preliminary results on drug delivery using these hollow and solid chitosan microneedles.
Published in: 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Date of Conference: 18-21 July 2018
Date Added to IEEE Xplore: 28 October 2018
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PubMed ID: 30441639